Ventilator-ean



M M. KOHN.-

VENTILATOR FAN.

rue/mow FILED MAY5. 19w.

33%2582. Patented Nov. 1919.

2 SHEETS-SHEET I M. M. KOHN.

VENTILATOR FAN. APPLICATION FILED MAY 5. 1917.

1 ,322,582. Patented Nov. 25, 1919.

2 SHEETSSHEET 2 ElgJl. 55

awe/whom UNITED STATES PATENT @FETQE.

MILTON M. KOHN, OF NEW YORK, N. Y., ASSIGNOR TO THE VENTILATOR FAN (30.,INQ, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

VENTILATOB-FAN.

Specification of Letters Patent.

Patented Nov. 25, 1919.

Application filed May 5, 1917. Serial No. 166,604..

To all whom it may concern:

Be it known that I, MILTON M. KoHN, a citizen of the United States,residing in the borough of Manhattan, city, county, and State of NewYork, have invented an Improvement in Ventilator-Fans, of which thefollowing is a specification.

My invention relates to a ventilator fan and the object thereof isthe-provision of a ventilator fan so constructed as to be used Withoutany change either as a desk fan, a table fan, or a wall or ceiling fan,and is distinguished from the ordinary type of fan which merely agitatesor stirs up the air and does not create a positive circulation as isdone by my improved ventilator fan. Among other objects of my inventionis to combine in the ventilator fan structure special combinationornamental and decorative features, as for example, a table lamp andfan, a candelabra and fan, a jardiniere and fan, or a piano lamp andfan, and in the larger typesof wall and ceiling devices to combine in asingle apparatus lighting and ventilating features.

In carrying out my invention I employ a base, a casing of any ornamentalor decorative tonfiguration and within which are contained a fan wheeland motor for driving the same. The fan wheel may be made of any desiredtype such as propeller blades, draw through fans, disk fans, ormultivane wheels or the like, and in all instances the fan wheel, ofwhatever type employed, as well as the motor, is entirely within thecasing so that no moving part projects beyondthe body f the apparatusthereby differing from various forms with so called deflectors. In thecasing adjacent the fan wheel there is an air discharge section soconstructed that the air delivered by the fan wheel is guided anddirected in any desired manner as will be hereinafter more particularlydescribed. The end of the casing opposite the base is preferably aseparate and removable member so that several interchangeable ends, eachembodyingdistinct ornamental features, may be employed, one end mayembody a lam and shade support, another end may embody a j'ardiniere,and still another a candelabra, and so on in an unlimited fashion. 1also empiov suitable means for affecting a change in the condition ofair circulated by my improved ventilator fan, for example by heating,cooling, disinfect smaller types of ventilator fans, although as will beunderstood the ventilator fans and particularly the larger typesthereof, may be provided with external means for this purpose whenemployed in theaters, halls, and

other public places.

, I wish here to'call attention to the title I have given the apparatuscomprising this invention. I preferto call it a ventilator fan for tworeasons; the one because it creates a positive suction at the inlet end,whether this be at the bottom or the top or in any intermediateposition, and the other because the inlet end may be readily connectedto an outside source of fresh pure air, thereby providing ventilatingfeatures which so far as. I am aware has never been accomplished in anytype of fans with which this invention may be' compared.

The ventilator fan made in accordance with this invention will behereinafter-more particularly described in connection with theaccompanying drawings in which:

Figure 1 is an elevation embodying one form of the ventilator fan.

Fig. 2 is an elevation and partial crosssection of the same taken atright angles to the position as shown in Fig. 1.

Fig. 3 is a sectional plan on line 3-3 Fig. 1.

Fig. i is an inverted plan of the removable cap member.

Fig. 5 is an elevation illustrating the clamp contacts for securing theremovable cap in position in making electrical connections to the clampsor other devices that may be associated with the cap, and 6 is adiagrammatic view showing the electrical connections.

As willbe seen by reference to the drawing, in carrying out thisinvention I employ a base 10 provided with suitable supports 11 uponwhich the apparatus may rest when placed on a fiat surface and which aswill be understood, may be changed to brackets or other means of supportwhen the apparatus is connected to a wall or ceiling. In the. base 10there is fitted a switch member 12 having a handle or lever 13 by meansof which the switch may be turned to make and break theelectrical"connections supplying the necessary current employed fordriving the motor and controlling the speed ofthe same.

Suitably mounted on the base 10 I employ a casing 14. This as will beunderstood may be in theconfiguration illustrated or in any otherdesired shape so as to be sufficiently ornamental to be used fordecorative purposes. At the end of the casing adjacent the base,'thesame is provided with an air-inlet or inlets 15 and at the opposite endis provided with an out-turned flange 16. At this end of the casing Iemploy a plurality of rings each comprising an annular portion 17 andan. outwardly and preferably upwardly extending flange 17. The portions17 of these rings are preferably placed parallel to one another and tothe corresponding part of the outer end of the casing, and also in linewith the normal direction in which the air is-delivered from the fan soas to act as guides in directing the initial flow of the current of air.The upturned portions being curved will gradually change the directionof the flow of the air so as to direct it in a. predetermined patheither upwardly as shown when the fan, as illustrated, is placed on, atable or other similar support, or downwardly when the fan for example,is supported from the ceiling. 'It will be understood however, thatother means may be emploved for directing the path of the air As shownin Fig.1, the'cap 19 may be provided with a. socketQO for an electriclamp bulb 21, and as hereinbefore intimated, the cap member instead ofbeing so fitted, may include a jardiniere, candelabra, or any otherornamental device, and any of these may be suitably equipped withelectric lamps. Also as illustrated, the cap member is provided withclamp contacts 19 to which the circuit wires 19 connected to the socket20, or any other illuminating devices employed are led, and thesecontacts also act as clamp members for securing the cover in position bypassing under and engaging similar contacts 23 secured in the outer endof the casing, these contacts 23 beingconnected by circuit wires 22 tosuitable terminals which are in multiple with the lead wires to themotor terminals hereinafter described.

enhance the decorative featuresot' the apparatus.

7 Within the casing 14 I employ an electric motor shown diagrammaticallyat 24c and mounted upon a motor base :25 preferably by support pins 26which are adapted to be re ceived in sockets provided therefor in thebase 10. As shown in Fig. 2, I also employ a series of circuitconnecting pins 27 depending from the motor base 25 and adapted toengage contacts provided therefor in the base 10 in order to completethe electric circuit to the motor. The motor shaft 28 is mounted at oneend in this construction in ai ball-thrust bearing 29, and in order toproperly lubricate the same I may employ a grease or oil-cup 30. k I

As shown and described, the motor may be controlled by a suitablerheostat fixed in the base'and operated by the handle 13 in operatingthe switch 12. At the opposite end of the motor shaft the same is fittedwith a fan wheel. comprising a hub 31 to which are connected suitablefan blades 32. As illustrated in the drawing and as shown particularlyin Fig. 3, these fan blades are connected in positions tangential to themotor shaft, but as will be understood, they may be placed radially orin any other suitable manner without departing from the nature andspirit'of my invention. These fan blades and the hub to which they areconnected are secured on the motor shaft in such a position as to liewithin therair discharge section of the casing, and as will beapparent'theoutlets of this discharge section are so constructed ashereinbefore described, as to guide and direct the air delivered by thefan in an upward direction as indicated by the arrows, the air-being"drawn through the casing 14: from the inlet openings 15, at one side ofthe fan, and

this portion of the air passes through the casing and around the motor.The air is also drawn through the openings 23 at the opposite end of thecasing and at the other side of the fan. It is also to be understoodthat the air discharge section of the casing may be so constructed as todirect the air delivered by the fan in any desired direction.

As illustrated in the drawing, and as shown particularly in Fig. '2, Ihave pro vided means for heating the air as currents of thesame passthrough the casing. This may comprise a coil 33 surrounding the motorcasing and containing a resistance wire 34 through which an electriccurrent from any source of supply may be passed and controlled from andby a separate switch. Also as indicated in this figure and also as shownin Fig. 3 the casing 14 in a suitable position may be provided with acup or pocket 35 adapted to receive a disinfecting or pertuming devicein order to perfume, or disinfect the air as the same passes through thecasing and before it is delivered by the fan from the same. For the samepurpose, and as also illustrated in these figures, one or more of thefan blades 32 may be provided with a receptacle 3G fitted with a cover37 and having apertures in its sides so as to receive and contain asuitable disinfectant or perfume and permit the escape of the same tothe air as the same is delivered from the fan. Instead of these devicesfor affecting the condition of the air as the same passesthrough thecasing, one end of the coil may extend through the casing as in-.

dicated at 38 Fig. l and for example may be supplied with a suitablerefrigerating mixture in order to cool the air, or means other thanthose described may be employed for heating the air and obviously theair may be dried or moistenedor ozonized by a suitable apparatus orotherwise treated while passing through the casing without departingfrom the nature and spirit of this invention. 7

It will also be understood that the airinlet openings 15 at the end ofthe casing adjacent the base, or otherwise placed, may be connected by apipe or other conduit with the outdoor atmosphere, for example, in ordertosupply entirely fresh air to the place to be ventilated, this beingparticularly applicable to the larger types of my improved ventilatorfans which are used in ventilating theaters. halls, public buildings andother similar places and structures.

It is to be distinctly understood that my invention is not limited tothe form of motor support shown in the drawing, as this may be modifiedin many ways; for exams ple, by employing a flange supporting the motorand forming part of the casing, or supporting the motor in a spiderattached to the body of the casing at any suitable place or in any othermanner so that the friction and vibration may be reduced to a minimum.Neither is this invention to be limited to the manner shown anddescribed for controlling the motor speed by a rheostat inasmuch as thespeed of the motor may be regulated by the field control or similarmeans. Furthermore it is to be understood that the invention is notlimited to the casing shown and described in which the air-inlets are atthe bottom, because in certain types of fan it may be advisable to havethe air-inlets at other places or in other positions.

Referring to Fig. 6 of the drawing, the terminals of the motor 24 areconnected 13 is adapted to engage either one or both of the contacts 41,42 so that the motor may be employed without the light or other devicesor motor, and the light may be simultaneously mployed, or the light maybe employed alone. it being understood that the pivotal point of theswitch arm 43 as indicated at 44 is connected to the other lead wire.Furthermore, as will be understood and as hercinbefore indicated, thespeed of the motor may be controlled by any suit able devices which arenot included in this diagrammatic Fig. 6.

I claim as myinvention:

1. In a ventilator fan, a fan wheel having a radial discharge, and meansfor diffusing the discharge from the fan wheel in substantially parallelpaths.

2. In a ventilator fan, a. casing, a fan wheel having a radialdischarge, and means for difl'using the discharge from the fan wheel insubstantially parallel paths circumferentially of the casing.

In a ventilator fan, a casing, a fan wheel having a radial discharge,means for diffusing the discharge from the fan wheel in substantiallyparallel paths circumferentially of the casing, and means for changingthe condition of the fan discharge as it passes through the casing.

4. In a ventilator fan. a fan wheel having a radial discharge, anddevices for diffusing the discharge of the fan wheel in substantiallyparallel paths as it leaves the blades of the fan and then directing itin other predetermined paths.

5. In a ventilator fan and in combination, a casing, a fan wheel withinthe casing for causing a current of air to flow through the casing, amotor for driving the fan wheel, and means for diffusing the dischargeof the fan wheel in substantially parallel paths as it leaves the bladesof the fan and then directing it in a predetermined path as it leavesthe casing circumferentially thereof.

6. In a Ventilator fan and in combination, a casing, a fan wheel Withinthe casing for causing a current of air to flow throughthe casing, amotor for driving the fanwheel. means for diffusing the discharge of thefan wheel in substantially parallel paths as it leaves the blades of thefan and then directing it in a predetermined path as it leaves thecasing circumferentially thereof, and means for changing the condition.of the air currents as the same pass through the casing having outturnedflanged peripheries for initially diffusing the air in parallel paths asthe same leaves the blades of the fan wheel and then deflecting it in apredetermined direction a it leaves the casing circumferentiallythereof.

8; In a ventilator fan and in combination, a casing having an air inletat one end thereof and an air outlet at the other end thereof, a fanwheel within the. casing adjacent the air outlet end thereof, a motorfor driving the fan wheel, a plurality of parallel rings in the airoutlet end of the casing having outturned flanged peripheries forinitially diffusing the air in parallel paths as the same leaves theblades of the fan wheel and then deflecting it in a predetermineddirection as it-leaves the casing circumferentially thereof, and meansfor changing the condition of the air currents as the same pass throughthe casing.

9. In a-ventilator fan and in combination, a casing, a fan wheel withinthecasing, a motor also within the casin for driving the fan wheel, andmeans for ifiusing. the discharge of the fan wheel in parallel planes atright angles tothe axis of the motor as it leaves the blades of the fanwheel.

10. In a ventilator fanand in combination, a casing, a fan wheel withinthe casing,

a motor also within the casing for driving the fan wheel, and means fordiffusing the discharge of the fan wheel in parallel planes at rightangles to the axis of the motor as it leaves the blades of the fanwheel, and

then directing it in-a .predeterminedpath as it leaves the'casingcircumferentially thereof.

in the cap, and means within the casing for creating a current ofair-therein.

1:2. In a ventilator-fan and in combination, a base, an ornamentalcasing connected at one end to the said base, a motor mounted within thesaid casing, a fan wheel driven by the motor for creating a current ofair in the casing and discharging the same therefrom, electricalconnections to the motor and controlled in the said base, a cap at theopposite end of the said casing, clamp members forming electricalcontacts secured in the said'cap, similar clamp members also formingelectrical contacts secured in the said opposite end of the casing andadapted to be engaged by the clamp members on the said cap, andelectrical connections from the said clamp members to the electricalconnections for supplying the motor.

13. In a ventilator fan and in combination, a base, a.casing secured atone end to said base and having air-inlets at the end thereof adjacentthe said base, aplurality of parallel rings with out-turned flangedperipheries secured to the opposite end of the casing and forming an airdischarge section therein, a fan wheel within the air discharge sectionof the casing, a motor for driving the said fan wheel, and means foreffecting a change in the condition of the air as ill passes through thecasing. p

14': In a ventilator fan, a'fan wheel having a radial discharge, acasing, means for dividing the dischargefrom the fan 'wheel Y initiallyinto substantially parallel paths, "and then directing the dischargeinto other

